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series SOC's System Management Bus controller.
SMB_ALERT#: SM Bus Alert line for System Management. Bidirectional signal, electrical level +3.3V_A with a 10kΩ pull-up resistor. It is managed by AMD G-
series SOC's General Event manager. Any device place on the SM Bus can drive this signal low to signal an event on the bus itself.
GP0_I2C_CLK: general purpose I2C Bus clock line. Bidirectional signal, electrical level +3.3V_S with a 2k2Ω pull-up resistor. This I2C signal is derived from AMD
G-series SOC's General Purpose I/O pin GPIO49.
GP0_I2C_DAT: general purpose I2C Bus data line. Bidirectional signal, electrical level +3.3V_S with a 2k2Ω pull-up resistor. This I2C signal is derived from AMD
G-series SOC's General Purpose I/O pin GPIO51.
WDTRIG#: Watchdog Trigger Input. It is an active low signal, +3.3V_S voltage with a 10kΩ pull-up resistor. This signal can be used to reset and restart, via
Hardware, the embedded microcontroller's internal Watchdog Timer (which is usually managed via Software using Q7-A29 dedicated API - Application Program
Interface - libraries).
WDOUT: Watchdog event indicator Output. It is an active high signal, +3.3V_S voltage. When this signal goes high (active), it reports out to the devices on the
Carrier board that the embedded microcontroller's internal Watchdog's timer expired without being triggered, neither via HW nor via SW.
THRM#: Thermal Alarm Input. Active Low +3.3V_S voltage signal with 10kΩ pull-up resistor, managed by the embedded microcontroller. This input gives the
possibility, to carrier board's hardware, to indicate to the main module an overheating situation.
FAN_TACHOIN: External FAN Tachometer Input. +3.3V_S voltage signal with 10kΩ pull-up resistor, managed by ST STM32F100R4H6 microcontroller.
FAN_PWMOUT: PWM output for FAN speed management, +3.3V_S voltage signal. It is managed by ST Microelectronics STM32F100R4H6 microcontroller.
SPKR: Speaker output, +3.3V_S voltage buffered signal, directly managed by AMD G-series SOC's embedded 8254 Timer (counter #2).
3.2.3.16 Manufacturing signals
According to Qseven
®
Standard specifications, rel. 2.0, on pin designed as MFG_NCx (pins 204, 207÷210) are carried the JTAG signal necessary to program Q7-
A29 embedded microcontroller.
The JTAG interface available on MFG_NCx pins is reserved only for the manufacturing phase; it must not be used by the customer.
It is not possible at all to use these pins to trace the software (for debug purposes).
Q7-A29
Q7-A29 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
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